Sulfocoumarins as dual inhibitors of human carbonic anhydrase isoforms IX/XII and of human thioredoxin reductase

J Enzyme Inhib Med Chem. 2020 Dec;35(1):506-510. doi: 10.1080/14756366.2020.1712596.

Abstract

The hypothesis that sulfocoumarin acting as inhibitors of human carbonic anhydrase (CA, EC 4.2.1.1) cancer-associated isoforms hCA IX and - hCA XII is being able to also inhibit thioredoxin reductase was verified and confirmed. The dual targeting of two cancer cell defence mechanisms, i.e. hypoxia and oxidative stress, may both contribute to the observed antiproliferative profile of these compounds against many cancer cell lines. This unprecedented dual anticancer mechanism may lead to a new approach for designing innovative therapeutic agents.

Keywords: Anticancer agents; carbonic anhydrase inhibition; hypoxia; oxidative stress; thioredoxin reductase inhibition.

MeSH terms

  • Antigens, Neoplasm / metabolism
  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Carbonic Anhydrase IX / antagonists & inhibitors*
  • Carbonic Anhydrase IX / metabolism
  • Carbonic Anhydrases / metabolism*
  • Cell Proliferation / drug effects
  • Cell Survival / drug effects
  • Coumarins / chemical synthesis
  • Coumarins / chemistry
  • Coumarins / pharmacology*
  • Dose-Response Relationship, Drug
  • Drug Screening Assays, Antitumor
  • Enzyme Inhibitors / chemical synthesis
  • Enzyme Inhibitors / chemistry
  • Enzyme Inhibitors / pharmacology*
  • Humans
  • Isoenzymes / antagonists & inhibitors
  • Isoenzymes / metabolism
  • MCF-7 Cells
  • Molecular Structure
  • Structure-Activity Relationship
  • Thioredoxin-Disulfide Reductase / antagonists & inhibitors*
  • Thioredoxin-Disulfide Reductase / metabolism
  • Tumor Cells, Cultured

Substances

  • Antigens, Neoplasm
  • Antineoplastic Agents
  • Coumarins
  • Enzyme Inhibitors
  • Isoenzymes
  • Thioredoxin-Disulfide Reductase
  • CA9 protein, human
  • Carbonic Anhydrase IX
  • Carbonic Anhydrases
  • carbonic anhydrase XII

Grants and funding

This work was supported by the Russian Foundation for Basic Research (project grant 18-515-76001) as well as by ERA.Net RUS plus Joint Programme grant RUS_ST2017-309 and State Education Development Agency of Republic of Latvia (“THIOREDIN”). AG is grateful to European Regional Development Fund (ERDF, project no. 1.1.1.2/VIAA/1/16/235). PZ is indebted to Saint Petersburg State University for providing his postdoctoral fellowship.